An investigation in Malaysia into links between local Muslim
activists and the 11 September attacks in the United States, is
sharpening tension between the ruling coalition of Prime Minister
Mahathir Mohamad and the main opposition party.

Speaking in a BBC interview, the Deputy Prime Minister and
Minister for Home Affairs, Abdullah Badawi, said "practically" all
the 15 alleged militants arrested in recent weeks turned out to
members of the opposition Parti Se-Islam Malaysia (PAS).

At least one of the detainees is suspected of having connections to
three of the hijackers who took part in the attacks on the World
Trade Center in New York and the Pentagon in Washington.

Mr Badawi denied charges that the government was exploiting the
affair to its political advantage.

"We don't want to be very quick in drawing conclusions, but we
are saying that the presence of these people among the PAS
people can create a kind of PAS politics which may not be in the
long-term interests of Malaysia," he said.

'No connection'

PAS leaders have hotly denied any connection between the party
and al-Qaeda or Osama Bin Laden.

"At the moment there is not an iota of evidence - this is clearly a
wild allegation by the [government]" PAS President Fadzil Noor
told the BBC. "As far as we know there is no connection at all.

"If there is, it is based on the actions of individuals."

Whatever the evidence of PAS connections to militant Islam, it
appears to be hurting the party politically.

A by-election on 19 January in the northern Malaysian state of
Perlis - an area where PAS has won strong support in recent
years - was won by the government's candidate with an enhanced
majority.

In his interview, Abdullah Badawy said the interrogation of 15 men
arrested under the Internal Security Act (ISA) had revealed the
existence of a network involving different groups and individuals
around the region.

"We have been able to establish connections with training in
Afghanistan and Pakistan," he said. "We are also aware that they
have linkages with similar groups in Singapore, the southern
Philippines and Indonesia."

Regional investigation

On Monday, the Philippine military announced the arrest of an
Indonesian man, Fathur Rohman al-Ghazi, who they allege to be a
leader of a group called Jemaah Islamiya.

The Singapore authorities - who have themselves arrested a
number of men in connection with an alleged plot to attack US and
other targets in the island state - say Jemaah Islamiya also
operates in Malaysia and Indonesia.

Separately, police in Jakarta said Tuesday that they have
summoned for questioning a Muslim cleric, Abu Bakar Bashir, who
has been linked to militant groups in Malaysia and Singapore.

Mr Badawy said it was not yet clear how far the militant network
extended.

"We have to face the facts, whatever facts that may surface as a
result of the investigation," he said. "We are co-operating with the
authorities in Singapore and also with other governments, the
United States particularly.

"No stone is left unturned."

The absence of firm information about the investigation in Malaysia
has left some observers sceptical.

"It's all political," said one local commentator. "The claims about
links to PAS are too convenient for the government."

The first round of arrests under the ISA in April 2001 led to the
detention without trial for two years of five senior aides to the jailed
former Deputy Prime Minister, Anwar Ibrahim.

A second sweep by police, also last year, brought in 16 people -
including the son of PAS spiritual leader, Nik Abdul Aziz - whom
the authorities claim to be members of the Malaysian Mujahedin
Group (KMM).

Cynics say the government has yet to produce evidence that the
KMM even exists.